<template>
  <div class="recommend" v-loading:[loadingText]="loading">
    <Scroll class="recommend-content">
      <div>
        <div class="slider-wrapper">
          <div class="slider-content">
            <Slider v-if="sliders.length" :sliders="sliders"/>
          </div>
        </div>
        <div class="recommend-list">
          <h1 class="list-title" v-show="!loading">热门歌单推荐</h1>
          <ul>
            <li
              v-for="item in albums"
              class="item"
              :key="item.id"
              @click="()=>{selectItem(item)}"
            >
              <div class="icon">
                <img width="60" height="60"
                     v-lazy="item.pic"
                >
              </div>
              <div class="text">
                <h2 class="name">
                  {{ item.username }}
                </h2>
                <p class="title">
                  {{item.title}}
                </p>
              </div>
            </li>
          </ul>
        </div>
      </div>
    </Scroll>
    <router-view v-slot="{ Component }" >
      <transition appear name="slide">
         <component :is="Component" :data="selectedAlbum"/>
      </transition>
    </router-view>
  </div>
</template>

<script>
// import { reactive, toRefs } from 'vue'
import { getRecommend } from '../../service/recommend'
import Slider from '../../components/base/slider/Slider'
import Scroll from '../../components/base/scroll/Scroll'
import storage from 'good-storage'
import { ALBUM_KEY } from '../../assets/js/constant'
// // 排行相关数据
// const useRecommendEffect = () => {
//   const data = reactive({ albums: [], sliders: [] })
//   const getData = async () => {
//     const result = await getRecommend() || {}
//     data.albums = result.albums
//     data.sliders = result.sliders
//   }
//   const { albums, sliders } = toRefs(data)
//   return { albums, sliders, getData }
// }
export default {
  name: 'Recommend',
  // setup () {
  //   const { albums, sliders, getData } = useRecommendEffect()
  //   getData()
  //   return { albums, sliders }
  // },
  data () {
    return {
      albums: [],
      sliders: [],
      loadingText: '正在载入...',
      selectedAlbum: null
    }
  },
  computed: {
    loading () {
      return !this.albums.length && !this.sliders.length
    }
  },
  methods: {
    selectItem (album) {
      this.selectedAlbum = album
      this.cacheAlbum(album)
      this.$router.push({
        path: `/recommend/${album.id}`
      })
    },
    cacheAlbum (album) {
      storage.session.set(ALBUM_KEY, album)
    }
  },
  async created () {
    const result = await getRecommend() || {}
    this.albums = result.albums || []
    this.sliders = result.sliders || []
  },
  components: { Slider, Scroll }
}
</script>

<style scoped  lang="scss">
  .recommend {
    position: fixed;
    width: 100%;
    top: 88px;
    bottom: 0;
    overflow: scroll;
    .recommend-content {
      height: 100%;
      overflow: hidden;
      .slider-wrapper {
        position: relative;
        width: 100%;
        height: 0;
        padding-top: 40%;
        overflow: hidden;
        .slider-content {
          position: absolute;
          left: 0;
          top: 0;
          width: 100%;
          height: 100%;
        }
      }
      .recommend-list {
        .list-title {
          height: 65px;
          line-height: 65px;
          text-align: center;
          font-size: $font-size-medium;
          color: $color-theme;
        }
        .item {
          display: flex;
          box-sizing: border-box;
          align-items: center;
          padding: 0 20px 20px 20px;

          .icon {
            flex: 0 0 60px;
            width: 60px;
            padding-right: 20px;
          }
          .text {
            display: flex;
            flex-direction: column;
            justify-content: center;
            flex: 1;
            line-height: 20px;
            overflow: hidden;
            font-size: $font-size-medium;
          }
          .name {
            margin-bottom: 10px;
            color: $color-text;
          }
          .title {
            color: $color-text-d;
          }
        }
      }
    }
  }
</style>
